Steam-superheater.



H. c. INSLIEE.

STEAM SUPERHEATER. APPLICATION FILED JULY 28. 1915.

1,200,357. Patented Oct. 3,1916.

' FI -l; Fig-4 INVENTOR.

M 6! M 7 BY Z rh'A TTORNEYS.

- within the superheater. tube. of the invention, and others,

i ST s PATENT OFFICE. 1

HEIBER Q'INSLEE, 0F ROSELLE, NEW JERSEY, ASSIONOR TO THE IBABCOCK.-& WILCOX COMPANY; OF BAYONNE, JERSEY, A CORPORATION OF NEW JERSEY.

STEAQM-SUPERHEATER.

To all whom it may concern;

citizen of the-United States, residing at Roselle, in the county of Union and State of New Jersey, have invented certain new and useful Iin' rovements in Steam-Superheaters, of which the following is a specification. A p

My invention relates to steam superheaters and more particularly to an engaging or locking piece for holding 'a core in place This feature will be understood by reference to the accompanying drawings, in which Figure 1 is a 'section'through a superheater tube showing the core in elevation; Fig. 2 an enlarged section of the tube and core, broken away, and part of the core being in elevation; Fig. 3 a transverse section on the plane of the line 3+3 of- Fig. 2; Fig. 4 a view of a spacer which surrounds the core, the tube being shown in broken lines; Fig. 5 a section on the-plane of the line 5-5 of Fig. 4; Fig. 6 a section on the plane of the line 6--6 of Fig. 2;-Fig. 7 a section on the plane of the line 7-7 of Fig. 6; and

. Fig. 8 an end view of the locking device.

face 7 of the lower end of the core.

imilar reference numerals indicate simi- V lar parts in the several views.

In the drawings the numeral 1 designates a U-shaped superheater tube the ends of which are expanded into boxes 2 and 3, said boxes having hand-hole fittings as usual. The cores 4 are cylindrical and extend from the lower ends of the tube throughout substantially their straight portions. For the purpose of holding each core in'position, .I

have devised a locking piece adapted to surround thelower end of'the core and to be forced into'the space between the core and the lower end of the tube. In the form piece consists of a ring therefrom. The inner faces of these fingers, at their upper ends, respond substantially with the tapered Ssur fingers are of such width that, when forced between the lower end of the core and the end of the tube, they will be wedged tight and thus hold the core securely'in position. Any suitable means may the locking device into position. For such Specification of LettersPatent.

tortmg the tube,

are beveled to cor be used to force Patented 0013.3, 1916.

Application filed July 28, 1915. Serial No. 42,259.

purpose I have used a nu t 8 placed onthe threaded end of the core and bearing against the side of the. ring 5. The fingers 6 are provided with lateral projections 9 to limit their inward movement by contacting with the end of the tube rolled out by the expander. The core is shown as made-up of hollow or tubular sections having their ends 10 reduced and exteriorly threaded, to receive a coupling sleeve 11. At the each section are triangular-shaped spacing pieces 12 having a central opening by which they may be placed over the sections. These pieces serve to center the core in the tubes.

to hold one of the spacing j not require a groove to be rolled in the tube 4 as in other forms of locking devices. bearing against the interior of the tube at the omtishown,

which is reinforced at this point by the. superheater box. A further advantage of the device is that by employingit a core can be readily removedand replaced due to the taper. does not interfere with the hand-hole ,fittings opposite the tubes which can be readily removed and replaced without manipulating the core.

What I claim and desire to secure by Letters Patent of the United States is 1. In combination, a superhea'ter tube,a

Again, the device core therein having its lower end tapered,

and a wedge device for supporting the core consisting of ing therefrom, said fingers being adapted to be forced into the space between the core and the lower open end of the tube.

2.'In combination, a superheater tube, a core therein, said core having its lower end tapered, and a wedge having a corresponding face adapted to between the tube.

a base having fingers projectbe driven'into the. space. the core and the lower open end of.

3. In combination, a superheatertube, a

core therein having its lower end tapered, a

. wedge device for supporting the core adaptbetween the ed to be forced into the space a core and the lower open end of the tube, and

wedge device havin projections adapted to the lower open end of the tube, and a. nut 1e engage the lower e ge of the tube to limit for forcing said fingers into said space. its movement. In testimony whereof I have hereunto 4. In combination, a superheater tube, a signed my name in the presence of two subcore therein, a wedge device for supporting scribing witnesses.

the core comprising a ring surrounding the HEBER C. INSLEE, lower end of the core with fingers projecting Witnesses: therefrom, said fingers being adapted to be EDWARD A. BANNON,

forced into the space between the core and JOHN H. CRONAN.- 

